Warp beam for looms



2 Sheets-Shee't 1 Nov. 22, 1938. J. T. JONES wARP BEAM FOR Looms Filed April 9, 1937 ATTORNEYS Patented Nov. 22, 1938 UNITED STATES PATENT OFFI 1 Claim.

This invention relates to Warp beams for looms and has for the primary object the provision of a device of this character wherein the various parts may be easily assembled and taken apart when necessary and the warp flanges thereof readily and accurately adjusted relative to each other for accommodating warps of different widths and to assure correct centering of a warp on the cylinder of a beam.

With these and other objects in view, this invention consists in certain novel features of construction, combination and arrangement of parts to be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had to the following' description and accompanying drawings, in which Figure l is a side elevation illustrating a warp beam constructed in accordance with my invention.

Figure 2 is a sectional view taken on the line 2 2 of Figure l.

Figure 3 is a transverse sectional view taken on the line 3 3 of Figure l.

Figure 4 is a transverse sectional view taken on the line 4-4 of Figure 2.

Figure 5 is an end view illustrating one end of the warp beam.

Figure 6 is a fragmentary longitudinal sectional view showing removable closure plates for the slots in the cylinder provided for the feed nuts to operate in.

Figure 7 is a perspective View illustrating one of the closure plates.

Figure 8 is a fragmentary plan view illustrating one of the slots in the cylinder of the device.

Referring in detail to the drawings, the numeral i indicates a cylinder equipped with slots 2 for the attaching of a warp on said cylinder and adjustable relative to each other and on the cylinder are warp flanges 3. Said flanges 3 may be accurately adjusted towards and from each other to accommodate on the cylinder warps of different widths and act to properly center a warp on the cylinder. Mounted on the ends of the cylinder are tension drums 4 each provided with peripheral spaced flanges 5 and each including inner and outer annular elements 6 and 'I. The inner annular elements B are centrally apertured to receive pintles 8 employed for rotatably supporting the beam on a loom and each has an integral collar 9 arranged in abutting engagement with the inner annular elements E. The inner annular elements 6 are provided with peripheral flanges IU which frictionally engage the inner walls of the outer annular elements 'i and define between said inner and outer elements annular spaces to receive the cylinder with its ends abuttingr the flanges i9. Tie bolts i i extend through the inner annular elements 6 and 5 through the cylinder for tightly securing the tension drums on the cylinder. It is to be understood that a, tight frictional t is provided between the flanges I0 and the outer annular elements 7. 10

A feed shaft I2 is arranged in the cylinder endwise of the latter and is journaled in openings formed in the tension drums and one end of the feed shaft projects beyond one of the drums and is shaped to provide wrench engaging faces I3 15 so that a wrench or similar tool may be adapted to the shaft for the purpose of rotating the latter in either direction. Right and left hand screw threads are formed on the shaft I 2 and meshing with said threads are feed nuts i4 pro- 20 vided with extensions I5 that project through slots i6 formed in the cylinder. The extensions i5 are of tenon shape and the warp flanges are grooved to receive the extensions I5 thereby establishing a dove tail t between the extensions and the Warp flanges. The extensions are detachably secured on the warp flanges by stud bolts Il. Meshing with the threads of the feed shaft I2 are lock nuts I8 adapted to be turned in engagement with the feed nuts after an adjustment of the warp flanges relative to each other has been made for the purpose of securing the warp flanges against accidental movement relative to each other or on the cylinder. The lock nuts have wrench engaging faces se that a wrench or similar tool can grip the latter by entering the cylinder by Way of the slots I6. Pinned on the feed shaft I2 are collars I9 which engage with the tension drums to prevent end- Wise movement of the feed shaft. Thus it will be seen that by rotating the feed shaft I2 in opposite directions, the warp flanges may be moved towards and from each other on the cylinder for the purpose of accommodating warps of different widths and after an adjustment has been made said warp flanges can be secured against accidental displacement by turning the lock nuts I8 against the feed nuts I ll. Formed in the warp flanges are chambers 2t and are located opposite to the feed nuts. Slidably mounted in the chambers and arcuately curved to conform to the contour of the cylinders are pressure shoes 2l forced into engagement With the cylinder by set bolts 22. Said set bolts are equipped with lock nuts 23. The pressure of the shoes on the cylinder may be varied by the adjustment of the set bolts.

Used in connection with the beam is a plurality of closure plates of various lengths one of which is shown in Figure 7 and designated by the character 24. After the adjustment of the Warp flanges relative to each other and it is desired to close portions of the slots I6 lying between the warp anges, closure plates of a certain size are selected for closing said portions of the slots. Said closure plates when adapted on the cylinder project into spaces provided in the hub portions of the warp langes, as clearly shown in Figure 2. Secured to the inner wall of the cylinder and projecting beyond opposite edges of the slots are ears 25 to form seats for supporting the closure plates and each closure plate has detachably secured thereto a bridge 26 which may be brought into engagement With the inner walls of the cylinder after the positioning cr the closure plate in the slot to cooperate with the ears 25 in preventing accidental displacement of the closure plate.

The inner annular elements are secured on the pintles 3 by keys 2? and engaging with said keys are set bolts 28 to prevent the pintles and annular elements from becoming accidentally disconnected from each other. The inner and outer annular members 6 and 'l are secured together by keys 28 held by set bolts 29. The ends of the set bolts 29 are arranged inwardly of the peripheries of the tension drums and are of the socketed type to permit a wrench to be applied thereto.

What is claimed is:

A Warp beam comprising a cylinder having slots extending longitudinally thereof, tension drums mounted on the ends of the cylinder, a feed shaft rotatably supported by said drums and lying within the cylinder, Warp flanges slidable on said cylinder, feed nuts engaging the feed shaft and extending through the slots and secured on said Warp flanges, said Warp flanges having chambers, adjustable pressure shoes mounted in said chambers and bearing against said cylinder, ears formed on the inner face of the cylinder adjacent the slots, removable closure plates for closing portions of the slots lying between the Warp flanges and engaged by said ears, and retaining elements pivoted on the plates to be positioned to engage the cylinder and cooperate With the ears in removably mounting the plates on the cylinder.

JOHN THOMAS JONES. 

